Equity investment ownership percentage.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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- Definition

The amount by which the company's Total Capital exceeds the minimum required for capital adequacy purposes.

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The fair value of assets acquired in noncash investing or financing activities.

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The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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Amount of increase (decrease) in the investments in and advances to affiliates.

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount of income (expense) related to nonoperating activities, classified as other.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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Stockholder's Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			12 Months Ended
	Jun. 30, 2017	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 18, 2017	Dec. 31, 2013	Dec. 31, 2010
Accumulated Other Comprehensive Income Loss [Line Items]
Preferred stock, par value				$ 1.00
Preferred stock outstanding				0
Cash flow hedges loss recorded in AOCI				$ (23,248)	$ (39,148)	$ (18,480)
Percentage of interest acquired in subsidiary							53.00%
Decrease in noncontrolling interest				(7,697)	(17,182)
Decrease in notes payable				(105,383)	101,845	(78,646)
Other non-operating expense, net				(1,069)	$ (1,067)	$ 1,986
Oceanteam ASA [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Purchase of vessel, cash consideration	$ 11,000
Note payable assumed	5,000
Decrease in noncontrolling interest	9,000
Decrease in notes payable	5,000
Capital-in-excess	$ 2,000
THHE Fabricators Sdn. Bhd [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Percentage of interest acquired in subsidiary								30.00%
Decrease in investments in unconsolidated affiliates				12,000
Other non-operating expense, net				5,000
Berlian McDermott Sdn, Bhd, [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Percentage of interest acquired in subsidiary								30.00%
Decrease in noncontrolling interest				$ 18,000
Fair value of asset surrendered		$ 17,000
Berlian McDermott Sdn, Bhd, [Member] \| TH Heavy Engineering Berhad [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Noncontrolling interest acquired by noncontrolling owners								30.00%
North Ocean 105 [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Percentage of interest acquired in subsidiary									75.00%
Ownership percentage in Oceanteam ASA's	25.00%
DLV 2000 [Member] \| Foreign Exchange Forward [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Cash flow hedges loss recorded in AOCI			$ 20,000
Maximum [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Preferred stock, shares authorized				25,000,000